J/other/OAP/31.235 2728 asteroid positions (Kitab obs.) (Shatokhina+, 2018)
Asteroids Search Results in Digitized Observations of the Northern Sky Survey
Project (KITAB Part).
Shatokhina S.V., Relke H., Yuldoshev Q., Andruk V.M., Protsyuk Yu.I.,
Muminov M.
<Odessa Astronomical Publications, 31, 235 (2018)>
=2018OAP....31..235S 2018OAP....31..235S (SIMBAD/NED BibCode)
ADC_Keywords: Minor planets ; Positional data ; Magnitudes, photographic
Keywords: catalogue - asteroids positions - FON project
Abstract:
Photographic observations of XX century contained numerous and varied
information about all objects and events of the Universe fixed on the
astronegatives. The original and interesting observations of small
bodies of the Solar system in previous years can be selected and used
for various scientific tasks. Existing databases and online services
can help make such selection easily and quickly. The observations of
chronologically earlier oppositions, photometric evaluation of
brightness for long periods of time allow refining the orbits of
asteroids and identifying various non-stationarities. Photographic
observations of the Northern Sky Survey project (FON project) were
used for global search for small bodies of Solar system. About 2000
photographic plates of Kitab part of the FON project were made using
Double Wide Angle Astrograph at the Kitab observatory (Uzbekistan)
during 1981-1989. Early, using that digitized observations the
catalogue of equatorial coordinates and stellar magnitudes for more
than 13 million stars and galaxies up to B=17.5m was compiled. At
present, we analyzed all processing results for the search of
asteroids and compiled the catalogue of equatorial coordinates and
stellar magnitudes of them. As a result more than 4500 asteroids and
comets with visual magnitude from 7.7m to 17.5m were identified now.
All positions of asteroids were compared with ephemeris. A preliminary
analysis of O-C differences was carried out. New and interesting are
that the moments of official discovery of some identified asteroids
much later than their moments of Kitab's observation. In addition,
some of them are the earliest observations of these asteroids in the
world among all known observations. More than 915 observations of such
asteroids have been found on the plates of Kitab part of the FON
project.
Description:
The catalog of 2728 positions and B-magnitudes of asteroids and comets
is based on the photographic observations of the FON-Kitab part of the
Northern Sky Survey (the FON project) obtained in 1981-1993 with the
Zeiss Double Wide Angle Astrograph (D/F=40/300, 69"/mm, IAU code
186) at the Kitab observatory of the Republic of Uzbekistan.
Digitizing of photographic plates was made with the help of Epson
Expression 10000XL scanner in 16-bit gray color range with the
resolution of 1200dpi. Images of all objects registered on plates
were processed using the advanced LINUX/MIDAS/ROMAFOT software complex
for CCD images processing. Additional software modules developed and
implemented in MAO NAS of Ukraine provide both the digitized image
processing and the final product as a catalog of positions and stellar
magnitudes of all registered objects. Asteroid coordinates and
B-magnitudes were obtained in the Tycho-2 reference system and the
system of photoelectric standards, respectively. The images of
asteroids that were fixed on photographic plates in the close vicinity
of images of stars from the Gaia DR2 were excluded from the compiled
catalog. Such images were not separated during processing and were
considered to be most likely misidentified. 1412 asteroid positions of
plates with the same center exposed simultaneously with both telescope
tubes are paired in the catalog. The remaining 1316 positions are
single. For paired positions, the mean values of equatorial
coordinates, B-magnitudes, and their root-mean-square errors are
given. More details as well as a gallery of plate images used for the
catalog can be found on the web page:
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 118 2728 2728 topocentric positions of asteroids and comets
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See also:
http://gua.db.ukr-vo.org/starcatalogs.php?whc=kitab-aster-2020 :
Database of Joint Plate Archive (DBGPA V2.0)
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Plate Plate number according to log-book
6 A1 --- Tube [A/B] Tube of telescope
8- 24 A17 "datime" Date UTC Date of observation
26- 33 A8 --- Name Name of asteroid or comet
36- 37 I2 h RAh Right ascension (J2000)
39- 40 I2 min RAm Right ascension (J2000)
42- 47 F6.3 s RAs Right ascension (J2000)
49 A1 --- DE- Declination sign (J2000)
50- 51 I2 deg DEd Declination (J2000)
53- 54 I2 arcmin DEm Declination (J2000)
56- 60 F5.2 arcsec DEs [] Declination (J2000)
63- 67 F5.2 mag Bphmag Photographic B magnitude
69- 74 F6.3 pix FWHM Diameter of asteroid image
(1.45arcsec/pix - pixel scale coefficient)
76- 82 F7.3 --- cI [0/716] Intensity in the center of image
84- 88 F5.2 arcsec O-CRA Difference (O-C)RA =15(O-C)RAcos(DEC)
90- 94 F5.2 arcsec O-CDE Difference (O-C)DE
96-100 F5.2 mag O-C(B-V) Difference B-V (ephemeris)
102-106 F5.2 arcsec e_RAs ?=99.99 Root-mean-square error of RA (1)
108-112 F5.2 arcsec e_DEs ?=99.99 Root-mean-square error of DE (1)
114-118 F5.2 mag e_Bphmag ?=99.99 oot-mean-square error of B (1)
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Note (1): for paired plates, 99.99 means absence of estimations for
single plates.
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Acknowledgements:
S. Shatokhina, svetash(at)mao.kiev.ua
Ludmila Pakuliak, pakuliak(at)mao.kiev.ua
(End) Ludmila Pakuliak [MAO NASU], Patricia Vannier [CDS] 25-Feb-2021